LOS ANGELES — Prosecutors investigating Michael Jackson’s death plan to file a criminal complaint charging the singer’s doctor with involuntary manslaughter rather than seek a grand jury indictment, The Associated Press learned Tuesday, a strategy shift that will give an eager public an earlier look at evidence.

While there is no public timetable for charges to be filed against Dr. Conrad Murray, there are strong indications the move is imminent. Murray and lawyer Edward Chernoff have traveled to Los Angeles from Houston, where Murray practices, and the attorney said his client is prepared to turn himself in.

“If they tell him to surrender in 10 minutes, he’ll go surrender,” said Chernoff, who spent several hours meeting with other members of Murray’s defense team Tuesday. “He’s never hidden, he’s always been available.”

David Walgren, the deputy Los Angeles County district attorney handling the case, declined to comment.

Reckless action?Jackson, 50, hired Murray to be his personal physician as he prepared for a strenuous series of comeback performances in London. His stunning death on June 25 in Los Angeles came after Murray, tending to Jackson in the star’s rented mansion, administered the powerful anesthetic propofol and two other sedatives to get the chronic insomniac to sleep, according to the Los Angeles County coroner’s office, which ruled the death a homicide.

Slideshow: Michael Jackson: 1958 - 2009
Propofol is only supposed to be administered by an anesthesia professional in a medical setting. The patient requires constant monitoring because the drug depresses breathing and heart rate while also lowering blood pressure, a potentially deadly combination.

Murray has maintained from the outset that nothing he gave the singer should have killed him. It wasn’t illegal for him to administer propofol to Jackson, though whether he followed proper procedures while Jackson was under the influence of the drugs is a key part of the case.

To bring a manslaughter charge, prosecutors must show there was a reckless action that created a risk of death or great bodily injury. If a doctor is aware of the risk, there might also be an issue of whether the patient knew that risk and decided to take it.

Last month, a law enforcement official told the AP that prosecutors had decided to seek a grand jury indictment on an involuntary manslaughter charge. On Tuesday, a second law enforcement official said prosecutors were sticking with the charge but planned to file a criminal complaint to avoid the appearance of secrecy in the closely watched case.

Grand jury proceedings are secret. A panel meets, hears evidence and then decides whether to return an indictment. A criminal complaint is a prelude to a public hearing where a judge would weigh testimony from witnesses to decide if there is probable cause to bring a case to trial.

Legal experts debated the reason for the change of strategy.

“It appears they are not too concerned about the dangers of publicity,” said Stan Goldman, criminal law professor at Loyola Law School in Los Angeles. “Maybe they even like the idea.”

Mark Geragos, a private criminal defense attorney who has represented a string of high-profile clients, including Jackson, said the decision suggests prosecutors are unsure they could persuade a grand jury that Murray was criminally liable for Jackson’s death.

“This may be one of those rare cases where a grand jury of citizens is not ready to attach criminal liability to the doctor,” Geragos said. “They may feel they are better off in front of a judge.”

Harland Braun, a celebrity defense attorney who also has represented doctors in court, disagreed, saying the move shows prosecutors are confident their evidence and witnesses could withstand cross-examination and public scrutiny.

“It’s really a test run on a case,” Braun said. “Both sides get to know what the strengths and weaknesses of the case are.”

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